Using the Circle Technique. 1  1. Place the shoes on a flat surface. 2  2. Tie a basic knot. 3  3. Tie another knot, but donât tighten it.  4. Thread one shoelace into the 1  circle. 5. Thread the other shoelace into the circle.  6. Pull the bunny ears tight.
The caffeine in coffee can also contribute to stomach pain through several different means. Caffeine stimulates the central nervous system, which can cause the stomach to produce excess stomach acid. This excess stomach acid can contribute to gastritis or ulcer formation.
Coffee contains chemicals that can irritate the stomach. Coffee is a widely consumed beverage and common source of caffeine. For some individuals, drinking coffee causes stomach pain. Coffee contains a complex concoction of chemicals, several of which may be the culprits responsible for causing stomach pain and discomfort.